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Prev Professional Automotive Repair Technical Discussions for August 17, 2009
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1997 Audi A4 Quattro 2.8L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: WAUEA88D3V
I have a 97 Audi A4 Quattro that came in with MIL light on and misfire codes for cyl's 4,5 & 6. Pulled plugs to inspect, look pretty new. Wires look good. Checked for spark at affected cylinders, have good spark. Checked injector pulse on affected cylinders, I... Trouble codes: P0304 (cyl 4 misfire), P0305 (cyl 5 misfire), P0306 (cyl 6 misfire), P0300 (random misfire detected)
2003 Audi A4 Quattro 1.8L MIL Lamp on VIN: WAULC68E03
STFT 25% at idle, cruise ok. replaced crankcase diaphram (was leaking @diaphram vent + passages partially clogged) cleaned out pcv hoses. fuel pressure ok ~58psi, 60 spec. smoked intake and no leaks found, smoked intake piping, no leak found. plugged sec. air ... Trouble codes: 17519 (B1S1 lean limit reached)
2000 BMW 328Ci 2.8L cooling VIN: WBABM5346Y
Good morning every one. This one first look like a easy problem but turn out hard. It been change weter pump 4 months ago with a OEM pump because it leaking water running fine after that. Now with MIL PO304 # 4 cylinder misfire but the car running fine with ou...
2000 BMW 528i 2.8L abs module VIN: WBADM634XY
Hi techs, I need to replace this abs/dsc module. What I dont know is if I need to send this to the BMW dealer for coding. I can buy the exact bosch part new. The distributor says that it is plug and play. I see this problem excessive on here. What I dont see i...
2002 Land Rover Discovery Series II SE 4.0L Brake Switch VIN: SALTL124XY
Another disco with abs lights on. Vehicle orignally came in with same problem, with Autodiagnos pulled codes got 0016- brake switch failure (intermittent). Repaced brake switch test drove many drive cycles, costumer took car. Now it is back with the same code....
2003 Land Rover Discovery SE 4.6L traction valve VIN: SALTY14403
Hey everybody, Got a Disco with ABS/TC/HLD Lights on. Vehicle came from a used car lot , I am using an Autodiagnos scan tool. Pulled codes and got shuttle valve codes and traction valve codes. I used to work at the dealer and this was a very common problem sol...
1991 Mercedes-Benz 500SL 5.0L softop VIN: WDBFA66E1M
Hello,I have just spent a frustrating afternoon,because my alldata ONLINE is almost totally illegible on the wiring diagrams for this convertible . The top stops at full vertical and should be an easy fix,but I cannot read anything!!!.It has code 17 for left ...
1995 Mercedes-Benz SL600 6.0L ride control VIN: WDBFA76E5S
i have in my shop a 1995 600sl with a hydraulic leak near right front wheel. the fluid seems to be coming from a cap at the bottom of the hydraulic control valve. this cap has two holes for a spanner wrench. my question is if that valve is servicable. i am not...
1997 Mercedes-Benz E420 4.2L Misfire, MIL Lamp on VIN: WDBJF72F7V
well thank you in advance you guy's out there have not failed me yet this site is the best. well any way boss car he gave this job to new tech in shope tech did not follow the right procedure when he took car a part know hee dose not work for us so boss came t... Trouble codes: P0300 (random missfire), P0341 (cam sensor range performance bank 1)
2001 Mercedes-Benz SLK230 Kompressor 2.3L monitors reset VIN: WDBKK49F01
Thanks in advance for your help with this. This vehicle failed the emission test due to monitors have not run. We were able to get the oxygen heater monitor to run but the monitor reset when cycling the ignition key to off. This happens each time the monitor r...
2005 Mercedes-Benz ML350 3.7L Poor Idle Quality VIN: 4JGAB57E85
Vehicle runs rough at idle. Checked STFT at idle, it is at +- 1.8 on both banks. No fault on computer. I hear a light "poping" noise from airbox.
2002 Porsche 911 Carrera 3.6L Hesitation VIN: WP0CA29982
Good Morning, This cusomer has a hesitation on acceleration when cold. After it warms up , its pretty good. I cleaned the MAF sensor, this has no fuel filter, and hesitates even at a stop, reving it. It has no codes. Any Ideas?
1994 Saab 900 SE 2.5L No Start VIN: YS3DM55VXR
Help appreciated, 2.5 v6 This car came in for a no start problem that occured a week after the car was in water. I don't know how deep but customer said it was on a hill and rr was to floor. Car starts and stalls imediatly. Holding key in start position car wi...
1993 Volkswagen Cabriolet 1.8L low oil pressure VIN: WVWCB0158P
Hello VW guru's . I have a buddies daughters VW with low oil pressure warning buzzer going off when warmed up.When cold the centre gauge reads over 3 bar at 2000 RPM.When fully warmed up it's only 1 bar at 2000RPM and less than 0.5 bar at idle. At idle the lig...
1995 Volkswagen Cabrio 2.0L No Start VIN: WVWBB81E4S
vehicle origanally came in a month ago with a interminent no start. start every time with slow crank, sold battery, sent them down the road. came back a week ago same deal no start, starts every time kid says it happens after a hot soak. car will crank but no...
1997 Volkswagen Jetta GL 2.0L No Start VIN: 3VWRB81H5V
This car came to me for this no start. It did not have spark. After testing I found it needed a coil, I replaced the coil and I now have spark. The car still does not start, or even attempt to start. It has spark at the plugs, compression, fuel pressure and vo...
1999 Volkswagen Passat GLS 2.8L No Start VIN: WVWMD63B8X
car sets p0455 code and after custmer fills car it is hard starting leak tested can not find leak Trouble codes: P0455
2000 Volkswagen Jetta GLX 2.8L Misfire, MIL Lamp on VIN: 3VWTE29M9Y
Hi, I seem to have checked everything I can check and am looking for some direction on this car. It has a misfire on cyl5 under load, worse when hot. Feels like an ignition miss. First tried swapping plugs and wires with a diff. cylinder to see if there was an... Trouble codes: P0300 (Random/Multiple Cylinder Misfire), P0305 (Cylinder 5 Misfire Detected)
2002 Volkswagen Golf GL 1.9L low power VIN: 9BWGP61JX2
HI VW techs, This one is a little strange, It looses power only when driving on highway, what's strange is that it will not come back until we shut engine off and then restart and drives fine in town but again will loose power shortly after it goes into overdr...
2003 Volkswagen Jetta GLS 1.8L none VIN: WVWSE61JX3
I replaced this O2 sensor 1 month ago. It had a heater issue. Now it came back with the p0420 code. I already know about the cat issues and it is under warranty. My question is I have 1.520 volts at idle. Under WOT it goes to just over 4 volts. This is using t... Trouble codes: P0420

Fixes & Summaries for European
Fix/Summary Answers
2004 Audi RS6 4.2L MIL Lamp on VIN: WAUPV64B14
Two schools here, one was lower the engine/subframe etc. carefully and use ky jelly ; ) to squeeze it out. The other was to remove the engine. As it turns out the emissions warranty is 8 years or 120,000 km. I informed the client of this and he opted to go ... Trouble codes: P0431.
1990 BMW 750iL 5.0L Poor Idle Quality, Hesitation, Surge, Stall, MIL Lamp on VIN: WBAGC8317L
Thanks to all who replied. To clarify my original posting, I was trying to get the codes out of the vehicle using the 'Check engine' light flash method & was unable to access the bank 2 codes. As I suspected from reading previous cases & from the responses I... Trouble codes: 1215 (Mass Air Flow sensor system 1).
1982 Mercedes-Benz 300SD 3.0L harsh 1-2 shift VIN: WDBCB20A3C
Thanks to all you guys who offered assistence on this benz transmission. We opted to leave the valve body alone, with exception of cleaning and making sure everything moved freely and finished the rebuild. After installation and initial roadtesting, we ran so...
2000 Mercedes-Benz SL500 5.0L top VIN: WDBFA68F4Y
this one is down the road. the first problem was the drivers side poston was not fully connected at top bracket. once this was corrected we had erratic operation due to a micro switch above that piston not being fully seated. The way the system operates is th...
1975 Volkswagen Beetle 1.6L Poor Idle Quality, Backfires VIN: 1352138886
First I was overwhelmed by all the responses. After reviewing them I applied them and I think I can say I've got a good fix that the customer likes. I first did a leak down test and didn't pick up anything. All the cylinders seemed solid. I ckd the valve adjus...
1987 Volkswagen Cabriolet 1.8L Hesitation, Surge, Cuts out VIN: WVWCA0156H
Thanks all, I see now why I have never seen this symptom before. Turns out I created the symptom. I had my fuel pressure gauge attached at a bango bolt to the injector and I never bled the gauge. I guess the air pockets in the hose would cause a cushion that...
1999 Volkswagen Jetta GL 2.0L No Start, MIL Lamp on VIN: 3VWRA29M1X
Thanks for all your suggestions,I forgot to mention that we had a cam sensor code.Installed new sensor.The aftermarket sensor was dead,installed dealer sensor and cleared codes.Did another idle adaptive and codes are all gone.Engine noise is still there[custom... Trouble codes: P1582 (throttle control error).
2002 Volkswagen EuroVan GLS 2.8L Cuts out, Stall, MIL Lamp on VIN: WV2KB47082
The Eurovan finally drove away from our shop- I hope never to see it again. The cause of the bad running after a few minutes turned out to be the (intake) hydraulic cam actuators, moving to their full advanced positions. We changed oil, added a new oil screen... Trouble codes: P1340 (17748 cam crank out of sequence), P1347 (17755 Ref..).
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